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Thermal analysis of a reflection mirror by fluid and solid heat transfer method

High-repetition-rate free-electron lasers impose stringent requirements on the thermal deformation of beamline optics. The Shanghai HIgh-repetition-rate XFEL aNd Extreme light facility (SHINE) experiences high average thermal power and demands wavefront preservation. To deeply study the thermal field of the first reflection mirror M1 at the FEL-II beamline of SHINE, thermal analysis under a photon energy of 400 eV was executed by fluid and solid heat transfer method. According to the thermal analysis results and the reference cooling water temperature of 30 °C, the temperature of the cooling water at the flow outlet is raised by 0.15 °C, and the wall temperature of the cooling tube increases by a maximum of 0.5 °C. The maximum temperature position of the footprint centerline in the meridian direction deviates away from the central position, and this asymmetrical temperature distribution will directly affect the thermal deformation of the mirror and indirectly affect the focus spot of the beam at the sample.




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A California Town Has No Reliable Running Water During A Heat Wave

Hafsa Fathima | NPR

For the last month, Frank Galaviz has wondered when running water will return to his town.

The 77-year-old resident of Teviston — a small rural community in Central California — has been forced to depend on stored and bottled water after the pump in the town's only functioning well broke down in early June. Since then, residents have had to travel to neighboring towns to shower or depend on the town's water storage tanks for their daily needs.

Temperatures continue to reach into triple digits as a brutal heat wave sweeps across the West Coast. The ongoing drought only exacerbates the problem, Galaviz says.

"[My wife and I] have lived through many challenges," he says. "We both have survived cancer, but we will not be able to survive without water. This is a problem that is not going away."

Teviston sits between the cities of Fresno and Bakersfield in the San Joaquin Valley and is home to mostly Latino farmworkers. Normal days in town are usually slow-paced and idyllic, Galaviz says, with many residents commuting to the nearby towns and cities on business. Now, they leave to find more water.

This is not the first time Galaviz or his neighbors have struggled with a broken well. He says two other wells had broken down in previous years and had not been repaired. A new, more modern well is in the works, but Galaviz estimates its completion is still a few years off.

The community continues waiting for repair parts to arrive in hopes it will fix the current well's pump, he added, a process that could take a few weeks.

"It is not normal to not be able to flush toilets," he says. "It's not normal to not be able to take a shower."

Residents have managed to come up with a temporary fix, using their water storage tanks to offer relief.

"We were able to get some of the water pressure back," Galaviz said. "We put a submersible pump into one of our old wells and we're forcing water from the storage tanks through that system. But it's not a permanent fix."

Rural Latino communities in California have been particularly vulnerable to drought conditions, according to a report from the state Legislative Analyst's Office.

"Having no water equals bad health," state Sen. Melissa Hurtado, who serves California's 14th District, tells Weekend Edition. Hurtado says her bill, SB 559, would allot $785 million to fund and repair water supply infrastructure. One of the waterways posed for fixing is the Friant-Kern canal, which supplies Teviston and the towns around it. Over the years, the canal has become subject to subsidence — a condition that has caused some parts of the canal to sink and means it can't deliver as much water.

"SB 559 would help fix the canal so that the basin and the communities that rely on water here would be able to have more access to it," Hurtado says.

Galaviz has spent the last few weeks knocking on doors to check in on neighbors and trying to organize help.

"I have a neighbor whose daughter has medical problems. She needs drinking water, pure water," he says. "It hurts to see people suffering."

Hafsa Fathima and Jan Johnson produced and edited the audio story.

Copyright 2021 NPR. To see more, visit https://www.npr.org.

This content is from Southern California Public Radio. View the original story at SCPR.org.




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With Summer Heat Waves, Hurricanes, and Flooding on the Horizon, Disaster Responders Grapple with Planning for Extreme Weather in the Time of COVID-19

This week the National Oceanic and Atmospheric Administration predicted an above-normal 2020 hurricane season, with the possibility of three to six major hurricanes this summer looming over millions of Americans.




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Drought and Record Heat in the West - The Climate Change Connection

As intense drought and record heat make their way across the Western U.S., the deep and devastating impacts of this extreme weather are clear — electric utilities are asking consumers to ration power and water, farmers are scrambling to sell or save their produce, and officials are making plans to keep their communities safe and cool.




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Samsung has a plan to stop Exynos chips from overheating

Samsung's FOWLP-HPB cooling tech for Exynos 2500 chipsets, set for Q4 2024, will enhance performance, modeled in Galaxy S25. Galaxy Z Fold 6, Z Flip 6 launching at Glaaxy Unpacked with Snapdragon 8 Gen 3, 4000mAh battery, 50MP sensor, and IP48 durability rating aims to combat Exynos 2400 throttling, offering better battery life and consistent performance.




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Van's Gluten Free Original Waffles recalled due to potential presence of undeclared wheat allergen

The recall was initiated after it was discovered that wheat-containing product was distributed in packaging that did not reveal the presence of wheat.





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KPM Industries releases updated whole wheat analyzer

The new Alveolab is the first Alveograph instrument able to analyze whole wheat doughs for all rheological characteristics: tenacity, extensibility, elasticity, and baking strength.




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The powerful WAT-tage of ‘wonder wheat’

Hard winter wheat (HWW) is the predominant wheat of choice for bread production, but I’m finding that not all varieties create dough with optimum handling properties.




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The challenges of making whole-wheat/whole-grain goods

Last fall, I attended the whole-grains presentation session at the American Association of Cereal Chemists International (AACCI). I took away a few highlights pertinent to the entire grain-processing industry that I’d like to share.




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Ritz Toasted Chips heats up March Madness with new flavors

The Ritz roster of NCAA athletes will share their exclusive first taste of the new sweet heat flavored chips and announce a chance to win a trip to the 2025 NCAA Men's or Women's Final Four.




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Club's Crisps, Mike's Hot Honey debut sweet-heat snack

Club Crisps flavored with Mike's Hot Honey bring the heat for a next-level snacking experience, available for a limited time starting this month.




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Supplier Standpoint: Heat and Control

Conveying in the food industry has become more sophisticated than simply moving product from point A to point B.




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Takis fuels sweet heat trend with debut of Dragon Sweet Chili tortilla chips

Brand dives into sweet and spicy snack sphere with introduction of sweet chili-flavored rolled tortilla chips.




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Frito-Lay issues allergy alert on undeclared soy, wheat in Doritos Nacho Cheese Flavored Tortilla Chips

Frito-Lay has issued a voluntary recall of a limited number of 14.5-oz. and 1-oz. tortilla chips that may contain undeclared soy and wheat ingredients from spicy sweet chili tortilla chips.




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Bellarise organic wheat-based dough conditioner

Bakery ingredient manufacturer Pak Group, through its North American brand, Bellarise, announces its new, certified organic, clean label and Non-GMO dough conditioner: Bellarise BellaSPONGE Organic.




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Clean-label baking with vital wheat gluten

What does clean label mean? How can you be certain your newly developed product meets today's clean-label expectations while consumer demands continue to evolve?




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AMC Theaters adds artisan pizzas, doughnuts to menu

Guests at many AMC locations can enjoy new artisan dishes and sweet treats, all designed to tantalize tastebuds and enhance the movie-going experience that help make movies better.




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Puffed and extruded snack consumers want health and heat in their buys

Consumers continue to reach for their favorite puffed and extruded snacks in their many forms. However, while U.S. shoppers still put tried and true types (like cheese curls and pork rinds) in their cart, they’re increasingly interested in trying new flavor twists, better-for-you bases, and other novel takes on the category. 




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Funyuns, Maruchan heat up snack aisle with collab

For the first time, the brands are coming together for an unexpected flavor mash-up: Funyuns x Maruchan Hot & Spicy Chicken Ramen Onion Flavored Rings.




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Guardian Technology by Energis announces pathogen reduction milestone in wheat tempering

Validated 3rd party study confirms an average 5.40 log reduction of pathogens in wheat temper with the Guardian System.




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HRS Heat Exchangers earns 3-A approval for key food models

Georgia-based HRS Heat Exchangers has been awarded the American 3-A Sanitary Standards approval for two of its key heat exchanger models for food and beverage use.




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Heat and Control new roasting technology

Heat and Control has chosen SNAXPO 2019, their 55thyear as an exhibitor, to introduce their latest snack processing innovation, the new Rotary Dryer Roaster (RDR).




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Heat and Control dryer/roaster technology

Heat and Control recently released their Rotary Dryer Roaster (RDR) multizone convection dryer/roaster system.




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AMC Theaters debuts Hidden Valley Ranch gourmet popcorn

The movie chain is offering the seasoned popcorn in select venues across the U.S.




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Addressing rising wheat and gluten prices

Bakery strategies to help mitigate supply-chain and pricing challenges.




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Better With Buckwheat lands distribution of cracker line

Artisanal buckwheat snack producer Better With Buckwheat is expanding into six regional and ecommerce grocery chains through June and July. 




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Processing Technology: Turning up the Heat

Reliability, flexibility, consistent product quality, easy sanitation and high-volume output are just some of the things bakers and snack producers want from a new oven or fryer. 




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Heat and Control 2-stage French fry fryer system

Heat and Control delivers another 2-Stage French Fry fryer system out of its Hayward, USA manufacturing facility to make batter coated French fries.




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Heat and Control's newest oil filtration technology for fried foods is creating safer and more efficient food manufacturing lines

Heat and Control, Inc., an equipment manufacturer and food processing industry supplier, recently released the OilSaver Filtration System to its Oil Management System lineup.




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Greatest Plumbing & Heating Inventions (Prior to1975)

The essence of plumbing is its mechanical genius.




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Greatest Plumbing & Heating Inventions(1900-1950)

The nature of plumbing is such that its most clever innovations usually are obscure to the public eye.




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Greatest Plumbing & Heating Inventions

People take for granted devices such as the T&P valve, kitchen disposal, flush toilet and so many of our industry's other useful gadgets that have made lives safer, healthier, more comfortable and convenient.




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Dandelion Energy introduces geothermal heat pump

The product qualifies for a 30% federal tax credit as well as stackable state and local rebates.




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LG Electronics USA expands ENERGY STAR-certified line of Inverter Heat Pump Water Heaters

LG Electronics USA expanded its line of ENERGY STAR-certified Inverter Heat Pump Water Heaters with two new models featuring demand response and a water leakage detection sensor, ensuring a comprehensive domestic water heating solution for residential applications.




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A. O. Smith commercial heat pump water heater

The unit features whisper-quiet operation at 45 dBA, minimizing noise disruptions in the building. 




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Rheem hybrid electric water heater

The Prestige Series Hybrid Electric Water Heater from Rheem is Energy Star-rated and its high 3.55-3.70 UEF reduces operating cost.




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Water-to-air geothermal heat pump from Bosch Thermotechnology




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Thermostatic mixing valve: Temperature control for solar heat

Webstone, a brand of NIBCO, introduces the new Thermostatic Mixing Valve for high-temperature solar heat sources.




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Geothermal heat pumps: The solution for residential developments

What does a looming housing shortage, a significant increase in energy prices and 52% of home buyers ready to heat and cool their homes with electricity have in common? They’re all remedied in the same way: All-geothermal residential developments.




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Ross Goldstein: Creating cooling and dehumidification using solar thermal or waste heat

There are multiple ways to dehumidify a space — mechanical, reheat and desiccant to name a few. The biggest issue has been that conventional air conditioning units are only 10% effective at removing humidity. Until now, standard de-humidification systems were expensive to purchase and install.




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DOE invests $6M in geothermal heating and cooling technologies at federal facilities

New technical assistance capacity will help the federal government lead by example in demonstrating benefits and potential of decarbonizing buildings with geothermal energy.




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Ross Goldstein: Waste heat recovery from solar PV

A little-known fact about solar electric panels is that the hotter the panel itself, the less efficient it becomes. Studies have found a 0.05% efficiency loss for every degree of temperature that is increased. The reverse is true in that efficiency increases by 0.05% for every degree temperature decreases.




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IRA reduces cost barriers for geothermal heating and cooling

The Inflation Reduction Act of 2022 has delivered good news in the form of federal income tax credits and accelerated depreciation deductions that help make geothermal a more attractive option.





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Water-to-water heat pumps meet stringent efficiency requirements for new school facility

A North Vancouver school chose WaterFurnace for its reliability and energy efficiency. The manufacturer's rep mentioned that the equipment aligned with decarbonization efforts. Finances were a concern, as is usual with building projects.




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Commercial water heating market moves toward electrification

As more and more cities and states seek to reduce greenhouse gas emissions, it’s clear that regulatory activity is clearly driving the push to electrification and decarbonization.




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The growing trend toward electrified heating and cooling

As the world continues to search for solutions to reduce and eliminate carbon emissions, the plumbing industry suddenly finds itself at the forefront of change.




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Best practices for venting tankless water heaters

Here's what you need to know about venting for tankless water heaters and how you can approach it for the least cost and best results.




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The heat pump renaissance — exploring the latest trends shaping sustainable building solutions

Heat pumps are growing in importance due to climate change. Extensive investment in heat pump technology has led to higher heating capacities and smaller equipment sizes.




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Heat pump water heaters: transforming contractor profits with sustainable solutions

The plumbing industry is evolving with a focus on sustainability. Heat pump water heaters (HPWH) present an opportunity for contractors to stand out and meet changing client needs, contributing to environmental conservation and demonstrating leadership in a dynamic market.




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From automobiles to water heaters

A. O. Smith, celebrating 150 years in 2024, began in 1874 as a metal components supplier for baby carriages and bicycles. Arthur O. Smith designed a lightweight pressed steel car frame and became a major supplier to car manufacturers like Packard, Cadillac, and Ford.