Tuesday, December 21, 2010
【 Weak current College 】 smart energy-saving new solutions for hotels
Intelligent systems in the various features of the building have corresponding energy conservation control policy and application, this article focuses on the hotel's special architectural features and characteristics of the introduction of energy-intelligent system, for the construction of new hotels and energy-saving ideas and policies and we encourage each other.
In the hotel business, "expenditure" is the unchangeable motto: "income" depends on the amount of tourists, while the "cost" of hotel operation and management of all expenditure. Where the energy expenditure is in the normal operation of the hotel a maximum fee.
According to incomplete statistics, China's General Hotel annual electricity consumption of 30 000 ° ~ 150 million degrees more than the three-star hotel in annual electricity consumption in 100 million degrees ~ 1000 million degrees. Electricity costs are typically cost except the site of the hotel and the labour costs other than the maximum expenditure. For most hotels, the tariff is not effectively controlled by the hotel to the last item cost.
In the hotel's power consumption, large air-conditioned is energy, hot water supply, and lighting electricity consumption only in third place.
Here, we focused on intelligent systems in hotel construction and electricity-saving control of the role.
1 lobby of temperature control
The lobby is a facade of the hotel, with 24 hours a day, all year round and is open to guests require air-conditioning. But as the Hall of the people, the air conditioning load differently.
Lobby distribution of flows of people with a certain regularity: early morning check-in of passengers more and more visitors from the shop are concentrated in the noon; the remaining time, passengers are more random. Therefore, the lobby, air conditioning heat load as passenger spike time showing a regular fluctuations. Floor control intelligent system can under the load curve of regularity, fine-tune control state, depending on the time period for the adjustment of the air conditioning unit and chiller of operating conditions and efficiency, reduce control system dynamic fluctuations in energy consumption, both to ensure a comfortable indoor temperature, energy-saving control was achieved.
2-room temperature control
Room temperature control in the main rooms of the room and taken to control the networking and implementation. There are guests in the room, the room temperature is regulated primarily by guests autonomy to meet guests feel as first to ren; but in the rest room, such as the availability status, the air conditioner is usually not completely closed, but open to 1/3 condition, to guarantee the room furniture maintenance and longevity, and maintain the temperature of the whole hotel.
Guests in the lobby check-in, the front office software and room control system interface, automatically open the room air conditioning, and depending on the guests need room temperature setting to an appropriate degree; guests leave after the automated system recovery to leave the State. When cleaning personnel or other staff enters the room, the system also may act according to the different status and job content, such as the room's air conditioning electrical facilities to the appropriate setting State.
Shanghai Shi chapter information technology co., Ltd. developed by HRC (HoteRoomControl) hotel room control system and effective solution to the room without people, summer and winter system state at the request of the Manager on the room temperature automatically effective management, saving electricity, hotel and central air conditioning load reduction of extended life, and also gives guests a more comfortable and more Smart rooms.
In this way the hotel can be purposeful control room equipment electrical State, effectively avoiding "room air conditioner normally open or because the air conditioning off let guests entered the room feel uncomfortable" status.
3 floor temperature control
For most of the hotels, especially in tourist hotels, all have high season and low season. In the low season, guests on temperature comfort requirements will not change, but then if all the units within the hotel are open, you will cause a lot of energy depletion, increase the hotel costs or even make ends meet.
In this case, to rely on hotel management software, self-diagnostics function, the scheduling of the guests to one or several regions, just control-related areas of mechanical and electrical equipment started, you can create for the guests comfortable environment.
4 indoor lighting control
The hotel's interior lighting, generally can be divided into place (Hall, dining room, living room), back office and public space (corridor, toilets). Commonly used control are:
(1) timing controller (timer): automatically at scheduled times to switch the lighting environment mode, or lamps prescribed off control without manual control. This device can avoid forget to turn off the waste of energy. For example: at work, from work, lunch breaks, and night landscape lighting of automatic point off lighting.
(2) daylight light perception or brightness detection: when outside sufficient natural lighting, the device can automatically cut dimmable electronic ballasts for output as well as the brightness of the lamp by the window, or close the luminaire. Therefore its circuit design needs to be taken in parallel by configuring a window direction, suitable for the hotel Office window lighting, window corridors, outdoor lighting and landscape lights at night, and automatic control.
(3) thermal switch device: the device is suitable for the hotel's small conference rooms, reception room, toilets, etc. Thermal sensor automatically detects the space inside the human body temperature: when the room it was automatically lights; no automatic turn off the lights when; convenient and you can avoid wasting energy, now widely used in domestic hotel.
(4) overall group control type lighting control system: for example lighting central control system, two-wire system lighting control system, intelligent lighting system, guest rooms, the hotel can maneuver to changes in the lighting needs of work and rest.
5 equipment and kitchen temperature control
Equipment area including laundry room and equipment room, these rooms are often large, space, equipment, heat, air comfort requirements, but requires a lot of air flow, awayThe device heat, ensuring staff productivity, and improve the efficiency and life of the device.
Therefore, in outdoor fresh air supply and ventilation times, should be based on the volume of space equipment, heat and oxygen consumption, adjusted to the appropriate range.
6 car air control
Car park on the air quality is not high, so long as the quality of indoor air environment reach the normal value or minimum value. By manually, automatically, according to the indoor CO2 concentration, CO concentration and smoke content, to control the turbidity of indoor and outdoor air suction gas, central control system sending blower power switch.
7. closing remarks
Above the main explores intelligent systems in Hotel played on electricity. In addition, the hotel water consumption is quite huge. Due to the construction, decoration, use, or the device aging and many other questions will have wasted a lot of water. Faced with this situation, you can dry pipe flow monitoring and installation of water exports at the end of the flow sensor, check building water leaks through the end of the dry pipe flow and flow of bad checks whether there are leaks water transport, through the end of the flow sensor monitoring information to determine whether the end of the faucet or the toilet is leaking.
In short, hotel energy conservation is to continually satisfy people's life quality and comfort, the maximum savings in energy consumption. Hotel energy to a number of factors, in addition to the above discussion of intelligent applications through the use of lighting and power-optimized design, heating and air conditioning energy saving design, hot and cold water reasonable design, measurement and monitoring of building energy saving and energy-saving building industry management and intelligent systems that will ultimately achieve the ideal energy saving effect to achieve effective "throttle" that is, investment and management of win-win situation.
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