Solar heating systems

I. Overview of solar heating systems: solar heating system consists of solar collectors (flat plate solar collectors and vacuum tube solar collectors, u-tube solar collectors, heat pipe solar collector), water tank, connecting piping, control system and auxiliary material composition. Refers to distributed solar energy through a heat exchanger, converts solar hot water, hot water stored in a water tank, and then transported by water to the fever ends (for example: Radiant floor heating and radiator heating), provides building heating needs.

II. General requirements:

　　Building roof or building can be placed next to the appropriate area of the solar collector.

　　Installation of solar heating systems building, mainly towards the desirability to the South. Construction of figure and space combination to avoid installing the solar collector area and trees block the building itself and the surrounding facilities and shall meet the requirements of solar collector number with exposure to at least 4H days.

　　Main structures or structural elements of the building, should be able to withstand the load of solar hot water systems.

　　Building exterior wall with thermal insulation.

　　Architectural glass is glass.

　　These conditions more suitable for installation of solar heating systems.

III. technology of solar heating system selection 1. selection of solar collectors

　　System selection is the major consideration of the following factors: a. Solar Collector types; b. the system works, natural circulation or forced circulation, closed systems or open system; c. heat, directly or indirect systems; d backup heat source, electric heaters, gas boilers, coal fired boilers, biomass boilers, heat pumps, etc; e. material of pipes and water tanks.

　　Solar collectors can be table 1-1 selection.

　　

Solar Collector selection parameters table

2. solar energy storage heating introduction

　　Divided into day-storage of solar energy storage heating floor heating, weekly storage heating, cross-quarter energy storage heating

A. day-storage heating

　　Day-storage heating using solar collectors to collect the day's heat to water tanks