SFBH Solar Heating For Hotel

1.1 Overview

• Hotels, apartments, fitness centers, spas, factories, schools, hospitals and other public places need to use a lot of hot water every day and energy expenditures account for a large part of the cost.

• One-time investment in solar heating can recover investment costs in 2 to 4 years. Solar heating system can be used  for 15-20 years, so it is obviously to see the fixed income in the future.

• Solar heating systems are becoming popular in central heating systems.

• SFBH system is mainly designed for central heating projects of 20 persons or more. The larger the project, the more obvious the effect of energy saving and cost reduction.

1.2 Structure

2.1 Per capita water consumption

If 20 °C cold water is mixed with 60 °C hot water, 55 L of 60 °C hot water and 45 L of 20 °C cold water are required.

2.2 The amount of insolation

2.3 Water temperature

2.4 Solar collector

2.5 conclusion

• Initial temperature of water

• User request on water temperature

• sun insolation in the city where the project is located

• Solar collector and tank installation location

• Original heating equipment utilization, connection and intelligent control

• Design of backup heating systems

4.1  Less than 2000L Solar Heating Hotel Project Design Solution（Pressured tank）

4.2  1000L-2000L Solar Heating Hotel Project Design Solution（Non-Pressured tank）

• The design uses a solar heat pipe collector and an unpressurized storage hot water tank, with 2 coils inside.

• The bottom coil is used for the solar collector circulation heating system and the top coil is used for the hot water supply.

• The water tank uses a float ball to replenish water.

• The top coil can be used to directly supply high pressure hot water, reduce equipment and operating costs for hot water supply.

4.2.2 System design operation diagram

4.2.3 Common specification configuration list

4.3  3000L-5000L Solar Heating Hotel Project Design Solution

4.3.1 Design Features

• The design uses a solar heat pipe collector and an unpressurized storage hot water tank with 1 coil at the bottom.

• The bottom coil is used for the solar collector circulation heating system.

• The solenoid valve in the tank help feed water.

• Generally a booster pump need to be added into system hot water supply.

4.3.2 System design operation diagram

Solar Controller：SR530F8

4.4  6000L-12000L Solar Heating Hotel Project Design Solution

• The design uses a solar heat pipe collector and an unpressurized storage hot water tank without coils.

• Plate heat exchanger, transport heat energy absorbed by solar collectors to the tank.

• The solenoid valve in the tank help feed water.

• If there is a big request on hot water supply,  system needs to be equipped with a booster pump or a variable frequency booster pump.

4.4.2 System design operation diagram

4.5 Optional Accessories

4.6 Fittings kits

5.1 Installation

• Solar collectors can be installed on the ground, on the flat roofs or inclined roofs where have efficient sunshine.The brackets need to be fixedly connected with mounting base

• Water tank is placed on the ground or on the roof.            

• Circulating pump is fixed on the ground or wall and needs to be protected from rain and water.            

• Metal pipe is used as circulation pipe such as red copper pipe or stainless steel bellows pipe. PPR pipe is avoided.            

• Solar collector is installed in a symmetrical matrix to avoid unequal pipeline flow and short circuit.            

5.2 Cases

• 125 rooms hotel and 1 swimming pool. Roof is flat size of 18m x 24 m.            

• Located in middle of south pacific ocean, hot weather year, around, temperature average 29 °C.            

• Employees shower . 100 employees from 14.00 to 16.00 PM each day. We have water tank of 5000L with steam coil heating.            

• Floor washing in production dep. Water consumption 6 m cub/ day, Max instant consumption 4 m cub/h. Temp. 45 °C.            

5.3 Warranty and Certificate

• 1st sunflower has passed certifications from different quality management systems and  product testing institutions. such as ISO9000, CE, Solarkeymark, SRCC, BV, SGS, Watermark etc
• Solar collectors : 5 years
• Water tank : 3 years

5.4 Packaging and Transportation

• The solar vacuum tube with heat pipe is packed in carton, and the carton is equipped with anti-pressure foam. We will add plywood cases extraly for package of goods under LCL shipment.
• The package design can be stacked and stored, but the base layer should be flat and evenly stressed. The maximum stacking level of the solar vacuum tube is 17 levels.
• The solar water storage tank is packed in carton and placed on pallets for transportation and store.