A numerical model to predict energy conservation potential of earth-air heat exchanger system and passive thermal performance of building has been developed. This model improves upon previous studies by incorporating effects of ground temperature gradient, surface conditions, moisture content...

Gas engine-driven heat pump (GEHP) is a heating and cooling system with the advantage of reducing the electric power in both heating and cooling modes of operation.

This paper proposes a snow storage system in a renovated space for efficient energy use and reduction of the costs related to snow utilization, and aims to clarify the system’s effectiveness. First, it gives an outline of the system together with a description of the facility used for...

The California Energy Commission has recognized evaporative cooling space conditioning as a key demand-side “Opportunity Technology,” which offers compelling energy, economic development and environmental benefits to the state. In 1993, the Commission lead an effort to form an industry...

A room-cooling system of 2kW capacity fueled by wood pellets was designed, built and tested. The system was demonstrated during summer at the Yakushima Field Station of Kagoshima University, Japan. It contained a pellet feeder, a pellet burner, a heat exchanger, a lithium bromide–water...

The goal of the present study is to validate the cooling performance of a ground-coupled heat pump system established in Fırat University, Elazığ (38.41°N, 39.14°E), Turkey. The cooling load of the test room was 3.1kW at design conditions. The experimental results were obtained from June to...

We examine the water-use balance, fruit yield and water-use efficiency of five-year-old peach trees with two different mulching systems: plastic film mulched ridge, with furrows (PFM) and straw mulched (SM). Compared with the clean tillage (CT) water management method, PFM increased, and SM...

Soil mulching material significantly affects the energy balance and soil thermal regime. In order to study the effect of soil mulching with a paraffin-wax emulsion on soil thermal regime, we developed a one-dimensional numerical model, which simulates the microclimate of the mulched soil. The...