A fluid-based system for use in heating and/or cooling. In particular, the system may have a fluid heating device, which may be a solar fluid heating device, configured to heat a fluid. Heat from the heated fluid may be transferred to one or more cooling subsystems or heating subsystems. A cooling subsystem may be an absorption cooling subsystem, for example, wherein heat may cause phase change of a refrigerant. A heating subsystem may include a storage tank through which heated fluid may be circulated to heat the storage tank. A system of the present disclosure may include multiple cooling and/or heating subsystems for cooling and or heating a variety of different environments, objects, or materials.

A solar environmental control system includes a solar powered apparatus and a heat transfer apparatus. The solar collection apparatus includes a solar collector for absorbing solar energy, a heat storage medium, and a generator. A heat transfer fluid circulates between the solar collector, the heat storage medium, and the generator.

A multi-energy coupled cooling/heating system, including a multi-level management unit for heat sources, a solar energy heat collection unit, a lithium bromide absorptive refrigeration unit, a gas heat complementing unit, a ground source heat pump cooling/heating unit, and an indirect evaporative cooling waste heat recovery unit; the multi-level management unit for heat sources is connected to the solar energy heat collection unit, the lithium bromide absorptive refrigeration unit, the gas heat complementing unit, and the ground source heat pump cooling/heating unit, the ground source heat pump cooling/heating unit is connected to the indirect evaporative cooling waste heat recovery unit.