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The Ministry of Natural Resources and Environment (MONRE, Vietnamese: Bộ Tài nguyên và Môi trường) is a government ministry in Vietnam responsible for: land, water resources; mineral resources, geology; environment; hydrometeorology; climate change; surveying and mapping; management of the islands and the sea.
Vietnam had the fastest growth in coal use in Southeast Asia during 2011-2021, at an annual growth rate of 11%. [4]Data of the Ministry of Industry and Trade (MOIT), 10 months of 2018 coal production was estimated at 34.35 million tons, up 10% over the same period in 2017, of which clean coal output of Vinacomin (TKV) was 29.6 million tons, up 10.9% over the same period last year. [5]
The main contributor to the country's emissions is fossil fuel combustion, which accounted for about 60% of greenhouse gas emissions in 2014. [3] As of 2018, the electricity sector accounted for 48% of Vietnam's CO 2 emissions from fossil fuel combustion, industry for 28%, transport 16%, the residential sector 4%, the commercial sector 3%, and agriculture 1%. [3]
A heat pump CoP increases as the temperature difference, or "Lift", decreases between heat source and destination. The CoP can be maximized at design time by choosing a heating system requiring only a low final water temperature (e.g., underfloor heating), and by choosing a heat source with a high average temperature (e.g., the ground).
A ground-source heat pump uses the shallow ground or ground water (typically starting at 10–12 °C or 50–54 °F) as a source of heat, thus taking advantage of its seasonally moderate temperatures. [15] In contrast, an air source heat pump draws heat from the air (colder outside air) and thus requires more energy.
Hòa Bình or Hoà Bình (see tone marks) is a mountainous province of Vietnam, located in the nation's Northwest region. It borders Phú Thọ province and Sơn La province to the northwest, Hanoi to the northeast, Hà Nam province to the east, Ninh Bình province to the southeast and Thanh Hóa province to the south.
A micro-CHP system usually contains a small heat engine as a prime mover used to rotate a generator which provides electric power, while simultaneously utilizing the waste heat from the prime mover for an individual building's space heating and the provision of hot domestic water. [2]
As heat demand increases, more electricity is generated to drive the heat pump, with the waste heat also heating the heating fluid. As the efficiency of heat pumps depends on the difference between hot end and cold end temperature (efficiency rises as the difference decreases) it may be worthwhile to combine even relatively low grade waste heat ...