嘉兴冰箱厂和北京市家用电器研究所共同合作,经过二年的努力,在一九八四年十月研制成功ZB×W50沼气吸收式冰箱,同年十二月通过了技术鉴定。吸收式冰箱是一种多能源的冰箱,它使用的热源有电、煤气、液化石油气、煤油、沼气等。沼气气源极为丰富,热值在5000千卡/标准米~3左右,发热量高,用作冰箱热源比用电经济得多。用电和沼气相比。所耗电费为沼气费的十倍。 Jiaxing refrigerator factory and Beijing Institute of household appliances co-operation, after two years of efforts, in October 1984 successfully developed ZB × W50 biogas absorption refrigerator, in December the same year passed the technical appraisal. Absorption refrigerator is a multi-energy refrigerator, which uses the heat source of electricity, gas, liquefied petroleum gas, kerosene, biogas and so on. Biogas gas is extremely rich, the calorific value of 5,000 kcal / standard meter ~ 3 or so, high calorific value, as a refrigerator heat source more economical than electricity. Compared with electricity and biogas. The electricity cost is ten times that of biogas.