Heat Cold

The years 2006 and 2007 mark a dramatic change of peoples view regarding c- mate change and energy consumption. The new IPCC report makes clear that - mankind plays a dominant role on climate change due to CO emissions from en- 2 ergy consumption, and that a significant reduction in CO emissions is necessary 2 within decades. At the same time, the supply of fossil energy sources like coal, oil, and natural gas becomes less reliable. In spring 2008, the oil price rose beyond 100 $/barrel for the first time in history. It is commonly accepted today that we have to reduce the use of fossil fuels to cut down the dependency on the supply countries and to reduce CO emissions. The use of renewable energy sources and 2 increased energy efficiency are the main strategies to achieve this goal. In both strategies, heat and cold storage will play an important role. People use energy in different forms, as heat, as mechanical energy, and as light. With the discovery of fire, humankind was the first time able to supply heat and light when needed. About 2000 years ago, the Romans started to use ceramic tiles to store heat in under floor heating systems. Even when the fire was out, the room stayed warm. Since ancient times, people also know how to cool food with ice as cold storage.

Improved housing conditions can save lives, prevent disease, increase quality of life, reduce poverty, and help mitigate climate change. Housing is becoming increasingly important to health in light of urban growth, ageing populations and climate change. The WHO Housing and health guidelines bring together the most recent evidence to provide practical recommendations to reduce the health burden due to unsafe and substandard housing. Based on newly commissioned systematic reviews, the guidelines provide recommendations relevant to inadequate living space (crowding), low and high indoor temperatures, injury hazards in the home, and accessibility of housing for people with functional impairments. In addition, the guidelines identify and summarize existing WHO guidelines and recommendations related to housing, with respect to water quality, air quality, neighbourhood noise, asbestos, lead, tobacco smoke and radon. The guidelines take a comprehensive, intersectoral perspective on the issue of housing and health and highlight co-benefits of interventions addressing several risk factors at the same time. The WHO Housing and health guidelines aim at informing housing policies and regulations at the national, regional and local level and are further relevant in the daily activities of implementing actors who are directly involved in the construction, maintenance and demolition of housing in ways that influence human health and safety. The guidelines therefore emphasize the importance of collaboration between the health and other sectors and joint efforts across all government levels to promote healthy housing. The guidelines' implementation at country-level will in particular contribute to the achievement of the Sustainable Development Goals on health (SDG 3) and sustainable cities (SDG 11). WHO will support Member States in adapting the guidelines to national contexts and priorities to ensure safe and healthy housing for all.

In Media Hot and Cold Nicole Starosielski examines the cultural dimensions of temperature to theorize the ways heat and cold can be used as a means of communication, subjugation, and control. Diving into the history of thermal media, from infrared cameras to thermostats to torture sweatboxes, Starosielski explores the many meanings and messages of temperature. During the twentieth century, heat and cold were broadcast through mass thermal media. Today, digital thermal media such as bodily air conditioners offer personalized forms of thermal communication and comfort. Although these new media promise to help mitigate the uneven effects of climate change, Starosielski shows how they can operate as a form of biopower by determining who has the ability to control their own thermal environment. In this way, thermal media can enact thermal violence in ways that reinforce racialized, colonial, gendered, and sexualized hierarchies. By outlining how the control of temperature reveals power relations, Starosielski offers a framework to better understand the dramatic transformations of hot and cold media in the twenty-first century.

Changing the temperature of certain things can result in some pretty cool outcomes. Readers of this innovative volume use heat and cold to perform a number of incredible experiments. Each project features concise, step-by-step instructions and colorful images that make it easy to follow along and learn from the activities. Helpful sidebars shed even more light on why and how the experiments work and help reinforce key science curricula. Each project is rated easy, medium, or difficult, making it simple to find the best project for a particular skill level.

Physical properties at room temperature and rupture test characteristics at 1200 degrees F were used as criterions to evaluate the effects of systematic variations of solution treatments, aging treatments, and hot-cold-work on the properties of bar stock from one heat of low-carbon N-155 alloy. On the basis of the yield strength for 0.02-percent offset at room temperature and rupture properties at 1200 degrees F, standard-type treatments that are best for the alloy could be set up. Trends found for the effects of various treatments should apply to other alloys of the same type.

Heating and Cooling with Ground-Source Heat Pumps in Moderate and Cold Climates, Two-Volume Set focuses on the use of very low-temperature geothermal energy for heating and cooling residential, institutional, and industrial buildings, and aims to increase the design community’s awareness and knowledge of the benefits, design, and installation requirements of commercial/institutional building ground-source heat pumps (GSHP). This set helps readers assess applicability, select a GSHP system type, and estimate building thermal load to ensure proper size for ground-source subsystems, appropriate brine and groundwater flow rates, and apt design of building closed-loops with distributed or central geothermal heat pumps. The first volume addresses fundamentals and design principles of vertical and horizontal indirect and direct expansion closed-loop, as well as ground- and surface-water ground-source heat pump systems. It explains the thermodynamic aspects of mechanical and thermochemical compression cycles of geothermal heat pumps, as well as the energetic, economic, and environmental aspects associated with the use of ground-source heat pump systems for heating and cooling residential and commercial/institutional buildings in moderate and cold climates. The second volume focuses on applications and cases studies of ground-source heat pumps in moderate and cold climates. It details technical aspects, as well as the most common and uncommon application fields of basic system configurations. The principles of system integrations and applications in moderate and cold climates are also presented, each followed by case studies. This comprehensive work is aimed at designers of HVAC systems, as well as geological, mechanical, and chemical engineers implementing environmentally-friendly heating and cooling technologies for buildings.