A novel Building Integrated Concentrating Photovoltaic (BICPV) Smart Window has been designed and developed as a next generation intelligent window system. In response to climatic conditions, the smart window varies solar light transmission into the building for provision of light and heat with the reflection of light to the photovoltaic (PV) for electricity generation. This unique function is ...

Thermoacoustic heat engines provide a practical solution to the problem of heat management in microcircuits where they can be used to pump heat or produce spot cooling of specific circuit elements. There are basically two types of thermoacoustic engines, a prime mover where heat is converted to acoustic energy, and a heat pump or cooler where sound can pump heat up a temperature gradient. Such ...

For many countries, increasing energy efficiency and reducing greenhouse gas emissions are key countermeasures to cope with the energy crisis and climate change. Of the various heating equipment such as heat pumps, gas-fired boilers, oil-fired boilers, or electric boilers, heat pumps are widely adopted for space heating, water heating, and process heating by households, business, and industry d...

This study is aimed at evaluating the performance of tetrakismethylene-3-3,5-di-tert-butyl-4-hydroxyphenyl propionate methane S1010, tris2,4-di-tert-butylphenyl phosphite S1680 and ascorbic acid AA antioxidants in stabilization of hydroxypropyl cellulose HPC. For this purpose, a number of films with weight percent ratios of 0.4 w/w were prepared in a 1 isopropanol solution w/v. Then, the films ...

A large amount of the waste heat generated during industrial production is not used, which leads to a low energy utilization rate. The recovery using pumps has advantages consumption, high efficiency, safety, and environmental protection. Industrial wide temperature distribution range. Traditional absorption compression can only work in narrow range due thermodynamic cycle, thermal properties w...

Hydrofluorocarbons (HFCs), one of the most used working fluids in HVAC&R and ORC applications, are being phased down rapidly because their high global warming potential (GWP). Consequently, this sector is looking for suitable eco-friendly low-GWP alternatives to representative 3rd generation HFC refrigerants (R-134a, R-404A, R-410A, R-245fa). This article reviews publicly available investigatio...